diff --git a/htdocs/comm/prospect/list.php b/htdocs/comm/prospect/list.php
index 47c051a4f47..176d71c77be 100644
--- a/htdocs/comm/prospect/list.php
+++ b/htdocs/comm/prospect/list.php
@@ -219,34 +219,23 @@ $sql.= " AND s.client IN (2, 3)";
 $sql.= ' AND s.entity IN ('.getEntity('societe', 1).')';
 if ((!$user->rights->societe->client->voir && !$socid) || $search_sale > 0) $sql.= " AND s.rowid = sc.fk_soc";
 if ($socid) $sql.= " AND s.rowid = " .$socid;
-if ($search_stcomm != '') $sql.= " AND s.fk_stcomm=".$search_stcomm;
-if ($catid > 0)          $sql.= " AND cs.fk_categorie = ".$catid;
-if ($catid == -2)        $sql.= " AND cs.fk_categorie IS NULL";
-if ($search_categ > 0)   $sql.= " AND cs.fk_categorie = ".$search_categ;
-if ($search_categ == -2) $sql.= " AND cs.fk_categorie IS NULL";
-if ($search_nom) {
-	$sql .= natural_search('s.nom', $search_nom);
-}
+if ($search_stcomm != '') $sql.= natural_search("s.fk_stcomm",$search_stcomm,2);
+if ($catid > 0)           $sql.= " AND cs.fk_categorie = ".$catid;
+if ($catid == -2)         $sql.= " AND cs.fk_categorie IS NULL";
+if ($search_categ > 0)    $sql.= " AND cs.fk_categorie = ".$search_categ;
+if ($search_categ == -2)  $sql.= " AND cs.fk_categorie IS NULL";
+if ($search_nom)     $sql .= natural_search('s.nom', $search_nom);
 if ($search_zipcode) $sql .= " AND s.zip LIKE '".$db->escape(strtolower($search_zipcode))."%'";
-if ($search_town) {
-	$sql .= natural_search('s.town', $search_town);
-}
-if ($search_state) {
-	$sql .= natural_search('d.nom', $search_state);
-}
-if ($search_datec) $sql .= " AND s.datec LIKE '%".$db->escape($search_datec)."%'";
+if ($search_town)    $sql .= natural_search('s.town', $search_town);
+if ($search_state)   $sql .= natural_search('d.nom', $search_state);
+if ($search_datec)   $sql .= " AND s.datec LIKE '%".$db->escape($search_datec)."%'";
 if ($search_status!='') $sql .= " AND s.status = ".$db->escape($search_status);
 // Insert levels filters
-if ($search_levels)
-{
-	$sql .= " AND s.fk_prospectlevel IN (".$search_levels.')';
-}
+if ($search_levels)  $sql .= " AND s.fk_prospectlevel IN (".$search_levels.')';
 // Insert sale filter
-if ($search_sale > 0)
+if ($search_sale > 0) $sql .= " AND sc.fk_user = ".$db->escape($search_sale);
+if ($socname)
 {
-	$sql .= " AND sc.fk_user = ".$db->escape($search_sale);
-}
-if ($socname) {
 	$sql .= natural_search('s.nom', $search_nom);
 	$sortfield = "s.nom";
 	$sortorder = "ASC";
@@ -362,22 +351,17 @@ if ($resql)
 	print '<input class="flat" type="text" size="10" name="search_datec" value="'.$search_datec.'">';
     print '</td>';
 
- 	// Added by Matelli
+ 	// Prospect levelt
  	print '<td class="liste_titre" align="center">';
- 	// Generate in $options_from the list of each option sorted
- 	$options_from = '<option value="">&nbsp;</option>';
+ 	$options_from = '<option value="">&nbsp;</option>';	 	// Generate in $options_from the list of each option sorted
  	foreach ($tab_level as $tab_level_sortorder => $tab_level_label)
  	{
  		$options_from .= '<option value="'.$tab_level_sortorder.'"'.($search_level_from == $tab_level_sortorder ? ' selected':'').'>';
  		$options_from .= $langs->trans($tab_level_label);
  		$options_from .= '</option>';
  	}
-
- 	// Reverse the list
- 	array_reverse($tab_level, true);
-
- 	// Generate in $options_to the list of each option sorted in the reversed order
- 	$options_to = '<option value="">&nbsp;</option>';
+ 	array_reverse($tab_level, true);	// Reverse the list
+ 	$options_to = '<option value="">&nbsp;</option>';		// Generate in $options_to the list of each option sorted in the reversed order
  	foreach ($tab_level as $tab_level_sortorder => $tab_level_label)
  	{
  		$options_to .= '<option value="'.$tab_level_sortorder.'"'.($search_level_to == $tab_level_sortorder ? ' selected':'').'>';
@@ -392,8 +376,11 @@ if ($resql)
 
     print '</td>';
 
+    // Prospect status
     print '<td class="liste_titre" align="center">';
-	print '&nbsp;';
+	// TODO Add here a list of prospect status
+    //print $form->selectarray($htmlname, $array, $search_stcomm);
+    //print '&nbsp;';
     print '</td>';
 
     print '<td class="liste_titre" align="center">';
diff --git a/htdocs/core/class/html.form.class.php b/htdocs/core/class/html.form.class.php
index 39634e6af31..6eab9d8b545 100644
--- a/htdocs/core/class/html.form.class.php
+++ b/htdocs/core/class/html.form.class.php
@@ -4304,36 +4304,40 @@ class Form
 
     /**
      *	Return a HTML select string, built from an array of key+value.
-     *  Note: Do not use returned string into a langs->trans function, content may be entity encoded twice.
+     *  Note: Do not apply langs->trans function on returned content, content may be entity encoded twice.
      *
-     *	@param	string	$htmlname       Name of html select area
-     *	@param	array	$array          Array with key+value
-     *	@param	string	$id             Preselected key
-     *	@param	int		$show_empty     0 no empty value allowed, 1 to add an empty value into list (value is '' or '&nbsp;').
-     *	@param	int		$key_in_label   1 pour afficher la key dans la valeur "[key] value"
-     *	@param	int		$value_as_key   1 to use value as key
-     *	@param  string	$moreparam      Add more parameters onto the select tag
-     *	@param  int		$translate		Translate and encode value
-     * 	@param	int		$maxlen			Length maximum for labels
-     * 	@param	int		$disabled		Html select box is disabled
-     *  @param	int		$sort			'ASC' or 'DESC' = Sort on label, '' or 'NONE' = Do not sort
-     *  @param	string	$morecss		Add more class to css styles
-     *  @param	int		$addjscombo		Add js combo
-     * 	@return	string					HTML select string.
+     *	@param	string			$htmlname       Name of html select area. Must start with "multi" if this is a multiselect
+     *	@param	array			$array          Array with key+value
+     *	@param	string|string[]	$id             Preselected key or preselected keys for multiselect
+     *	@param	int				$show_empty     0 no empty value allowed, 1 to add an empty value into list (value is '' or '&nbsp;').
+     *	@param	int				$key_in_label   1 pour afficher la key dans la valeur "[key] value"
+     *	@param	int				$value_as_key   1 to use value as key
+     *	@param  string			$moreparam      Add more parameters onto the select tag
+     *	@param  int				$translate		Translate and encode value
+     * 	@param	int				$maxlen			Length maximum for labels
+     * 	@param	int				$disabled		Html select box is disabled
+     *  @param	int				$sort			'ASC' or 'DESC' = Sort on label, '' or 'NONE' = Do not sort
+     *  @param	string			$morecss		Add more class to css styles
+     *  @param	int				$addjscombo		Add js combo
+     * 	@return	string							HTML select string.
      *  @see multiselectarray
      */
     static function selectarray($htmlname, $array, $id='', $show_empty=0, $key_in_label=0, $value_as_key=0, $moreparam='', $translate=0, $maxlen=0, $disabled=0, $sort='', $morecss='', $addjscombo=0)
     {
         global $conf, $langs;
 
+        // Do we want a multiselect ?
+        $multiselect = 0;
+        if (preg_match('/^multi/',$htmlname)) $multiselect = 1;
+
         if ($value_as_key) $array=array_combine($array, $array);
 
         $out='';
 
         // Add code for jquery to use multiselect
-        if ($addjscombo && empty($conf->dol_use_jmobile) && (! empty($conf->global->MAIN_USE_JQUERY_MULTISELECT) || defined('REQUIRE_JQUERY_MULTISELECT')))
+        if ($addjscombo && empty($conf->dol_use_jmobile) && $multiselect)
         {
-        	$tmpplugin=empty($conf->global->MAIN_USE_JQUERY_MULTISELECT)?constant('REQUIRE_JQUERY_MULTISELECT'):$conf->global->MAIN_USE_JQUERY_MULTISELECT;
+        	$tmpplugin=empty($conf->global->MAIN_USE_JQUERY_MULTISELECT)?constant('REQUIRE_JQUERY_MULTISELECT')?constant('REQUIRE_JQUERY_MULTISELECT'):'select2':$conf->global->MAIN_USE_JQUERY_MULTISELECT;
         	$out.='<!-- JS CODE TO ENABLE '.$tmpplugin.' for id '.$htmlname.' -->
         			<script type="text/javascript">
         				$(document).ready(function () {
@@ -4393,12 +4397,11 @@ class Form
 
 
     /**
-     *	Return a HTML select string, built from an array of key+value.
-     *  Note: Do not use returned string into a langs->trans function, content may be entity encoded twice.
+     *	Return a HTML select string, built from an array of key+value but content returned into select come from an Ajax call of an URL.
+     *  Note: Do not apply langs->trans function on returned content, content may be entity encoded twice.
      *
-     *	@param	string	$url			Url
      *	@param	string	$htmlname       Name of html select area
-     *	@param	array	$array          Array with key+value
+     *	@param	string	$url			Url
      *	@param	string	$id             Preselected key
      *	@param	int		$show_empty     0 no empty value allowed, 1 to add an empty value into list (value is '' or '&nbsp;').
      *	@param	int		$key_in_label   1 pour afficher la key dans la valeur "[key] value"
@@ -4412,7 +4415,7 @@ class Form
      *  @param	int		$addjscombo		Add js combo
      * 	@return	string					HTML select string.
      */
-    static function selectArrayAjax($url, $htmlname, $array, $id='', $show_empty=0, $key_in_label=0, $value_as_key=0, $moreparam='', $translate=0, $maxlen=0, $disabled=0, $sort='', $morecss='', $addjscombo=0)
+    static function selectArrayAjax($htmlname, $url, $id='', $show_empty=0, $key_in_label=0, $value_as_key=0, $moreparam='', $translate=0, $maxlen=0, $disabled=0, $sort='', $morecss='', $addjscombo=0)
     {
     	$out = '';
 
@@ -4455,7 +4458,7 @@ class Form
         }
 		else
 		{
-        	// TODO get values from ajax page to use a standard already completed array
+        	// TODO get all values from $url into $array
 
 		}
 
diff --git a/htdocs/core/lib/functions.lib.php b/htdocs/core/lib/functions.lib.php
index 3d756fb8e32..63ab76dcb2f 100644
--- a/htdocs/core/lib/functions.lib.php
+++ b/htdocs/core/lib/functions.lib.php
@@ -4974,21 +4974,22 @@ function dol_getmypid()
 
 
 /**
- * Generate natural SQL search string
+ * Generate natural SQL search string for a criteria (this criteria can be tested on one or several fields)
  *
- * @param 	string|string[]	$fields 	String or array of strings, filled with the name of fields in the SQL query
+ * @param 	string|string[]	$fields 	String or array of strings, filled with the name of all fields in the SQL query we must check (combined with a OR)
  * @param 	string 			$value 		The value to look for.
- *                          		    If param $numeric is 0, can contains several keywords separated with a space, like "keyword1 keyword2" = We want record field like keyword1 and field like keyword2
- *                             			If param $numeric is 1, can contains an operator <>= like "<10" or ">=100.5 < 1000"
- * @param	integer			$numeric	0=value is list of keywords, 1=value is a numeric test
+ *                          		    If param $mode is 0, can contains several keywords separated with a space, like "keyword1 keyword2" = We want record field like keyword1 and field like keyword2
+ *                             			If param $mode is 1, can contains an operator <, > or = like "<10" or ">=100.5 < 1000"
+ *                             			If param $mode is 2, can contains a list of id separated by comma like "1,3,4"
+ * @param	integer			$mode		0=value is list of keywords, 1=value is a numeric test (Example ">5.5 <10"), 2=value is a list of id separated with comma (Example '1,3,4')
  * @param	integer			$nofinaland	1=Do now output the final 'AND'
  * @return 	string 			$res 		The statement to append to the SQL query
  */
-function natural_search($fields, $value, $numeric=0, $nofinaland=0)
+function natural_search($fields, $value, $mode=0, $nofinaland=0)
 {
     global $db,$langs;
 
-    if ($numeric)
+    if ($mode == 1)
     {
     	$value=preg_replace('/([<>=]+)\s+([0-9'.preg_quote($langs->trans("DecimalSeparator"),'/').'\-])/','\1\2',$value);	// Clean string '< 10' into '<10' so we can the explode on space to get all tests to do
     }
@@ -5005,7 +5006,7 @@ function natural_search($fields, $value, $numeric=0, $nofinaland=0)
         $newres = '';
         foreach ($fields as $field)
         {
-            if ($numeric)
+            if ($mode == 1)
             {
             	$operator='=';
             	$newcrit = preg_replace('/([<>=]+)/','',trim($crit));
@@ -5029,8 +5030,13 @@ function natural_search($fields, $value, $numeric=0, $nofinaland=0)
             		$i2++;	// a criteria was added to string
             	}
             }
-            else
+            else if ($mode == 2)
             {
+				$newres .= ($i2 > 0 ? ' OR ' : '') . $field . " IN (" . $db->escape(trim($crit)) . ")";
+            	$i2++;	// a criteria was added to string
+            }
+            else
+			{
             	$newres .= ($i2 > 0 ? ' OR ' : '') . $field . " LIKE '%" . $db->escape(trim($crit)) . "%'";
             	$i2++;	// a criteria was added to string
             }
diff --git a/htdocs/core/menus/standard/eldy.lib.php b/htdocs/core/menus/standard/eldy.lib.php
index 7bba3d5edfa..b1197202d1b 100644
--- a/htdocs/core/menus/standard/eldy.lib.php
+++ b/htdocs/core/menus/standard/eldy.lib.php
@@ -583,11 +583,11 @@ function print_left_eldy_menu($db,$menu_array_before,$menu_array_after,&$tabMenu
 				$langs->load("commercial");
 				$newmenu->add("/comm/prospect/list.php?leftmenu=prospects", $langs->trans("ListProspectsShort"), 1, $user->rights->societe->lire, '', $mainmenu, 'prospects');
 
-				if (empty($leftmenu) || $leftmenu=="prospects") $newmenu->add("/comm/prospect/list.php?sortfield=s.datec&amp;sortorder=desc&amp;begin=&amp;stcomm=-1", $langs->trans("LastProspectDoNotContact"), 2, $user->rights->societe->lire);
-				if (empty($leftmenu) || $leftmenu=="prospects") $newmenu->add("/comm/prospect/list.php?sortfield=s.datec&amp;sortorder=desc&amp;begin=&amp;stcomm=0", $langs->trans("LastProspectNeverContacted"), 2, $user->rights->societe->lire);
-				if (empty($leftmenu) || $leftmenu=="prospects") $newmenu->add("/comm/prospect/list.php?sortfield=s.datec&amp;sortorder=desc&amp;begin=&amp;stcomm=1", $langs->trans("LastProspectToContact"), 2, $user->rights->societe->lire);
-				if (empty($leftmenu) || $leftmenu=="prospects") $newmenu->add("/comm/prospect/list.php?sortfield=s.datec&amp;sortorder=desc&amp;begin=&amp;stcomm=2", $langs->trans("LastProspectContactInProcess"), 2, $user->rights->societe->lire);
-				if (empty($leftmenu) || $leftmenu=="prospects") $newmenu->add("/comm/prospect/list.php?sortfield=s.datec&amp;sortorder=desc&amp;begin=&amp;stcomm=3", $langs->trans("LastProspectContactDone"), 2, $user->rights->societe->lire);
+				if (empty($leftmenu) || $leftmenu=="prospects") $newmenu->add("/comm/prospect/list.php?sortfield=s.datec&amp;sortorder=desc&amp;begin=&amp;search_stcomm=-1", $langs->trans("LastProspectDoNotContact"), 2, $user->rights->societe->lire);
+				if (empty($leftmenu) || $leftmenu=="prospects") $newmenu->add("/comm/prospect/list.php?sortfield=s.datec&amp;sortorder=desc&amp;begin=&amp;search_stcomm=0", $langs->trans("LastProspectNeverContacted"), 2, $user->rights->societe->lire);
+				if (empty($leftmenu) || $leftmenu=="prospects") $newmenu->add("/comm/prospect/list.php?sortfield=s.datec&amp;sortorder=desc&amp;begin=&amp;search_stcomm=1", $langs->trans("LastProspectToContact"), 2, $user->rights->societe->lire);
+				if (empty($leftmenu) || $leftmenu=="prospects") $newmenu->add("/comm/prospect/list.php?sortfield=s.datec&amp;sortorder=desc&amp;begin=&amp;search_stcomm=2", $langs->trans("LastProspectContactInProcess"), 2, $user->rights->societe->lire);
+				if (empty($leftmenu) || $leftmenu=="prospects") $newmenu->add("/comm/prospect/list.php?sortfield=s.datec&amp;sortorder=desc&amp;begin=&amp;search_stcomm=3", $langs->trans("LastProspectContactDone"), 2, $user->rights->societe->lire);
 
 				$newmenu->add("/societe/soc.php?leftmenu=prospects&amp;action=create&amp;type=p", $langs->trans("MenuNewProspect"), 2, $user->rights->societe->creer);
 				//$newmenu->add("/contact/list.php?leftmenu=customers&amp;type=p", $langs->trans("Contacts"), 2, $user->rights->societe->contact->lire);
diff --git a/htdocs/public/test/test_forms.php b/htdocs/public/test/test_forms.php
index c0c81882fe2..f14652f6dc0 100644
--- a/htdocs/public/test/test_forms.php
+++ b/htdocs/public/test/test_forms.php
@@ -51,7 +51,7 @@ print "Test 4c: a select with ajax refresh<br>\n";
 //$array=array(0=>'',1=>'Search into xxx',2=>'Search into yyy',3=>'Search into zzz');
 $array=array();
 $selected=-1;
-print $form->selectArrayAjax(DOL_URL_ROOT.'/core/ajax/selecsearchbox.php', 'testselectc', $array, $selected, 1, 0, 0, 'style="min-width: 250px;"', 0, 0, 0, '', '', 1);
+print $form->selectArrayAjax('testselectc', DOL_URL_ROOT.'/core/ajax/selecsearchbox.php', $selected, 1, 0, 0, 'style="min-width: 250px;"', 0, 0, 0, '', '', 1);
 */
 
 print '<br><br>'."\n";